factual, honest, scientific common sense arguments why "we've" been Duped for so many decades.
They Scared the Living Crap out of "The Greatest Generation".
The bottom line...today we are seeing an identical approach of FEAR Tactics/Psyche out Against Marriage Equality, Racial Equality, Womens Rights etc they used to convince My parents/Grandparents that Cannabis, that had been listed in the American Herbal Pharmacopeia for nearly a Century in the 1930's was Bad, Deadly, Addictive, and Only "Blacks and Hispanics" used it. It was the beginning of "Jim Crow II"
Look at this poster....
"The Devil Weed and Harry Anslinger"
http://mike-gray.org/psa/Anslinger_Ad.pdf
Before Hearst, DuPont, Bayer, Hoover and Anslinger and more came along, cannabis was pretty much mainstream medicine and available for both prescription and OTC in "Drug Stores".
"They" didn't want Hemp and Cannabis competing with these new things...and if you stop and think about it-neither did the "newly freed" alcohol industry.
Then jist of it: Lots of factors played into cannabis prohibition by many different people....but, still-Follow the Money, the "buck always stops at the cash drawer".
Basically, Alcohol Prohibition had just ended and "they" needed a new revenue stream as "Booze Money" dried up.....the case against "Indian Hemp" began in 1030 until they succeeded in Prohibition Part Deux:
https://en.wikipedia.org/wiki/Harry_J._Anslinger